| # | Entity | Status | State |
|---|---|---|---|
| 1 | 83 803 056 570 C.J DUFF & K.A DUFF & M.J DUFF & P.J DUFF |
ABN Cancelled | NSW 2365 |
| 2 | 34 552 507 053 C.T ALLEN & O.C DUFF & C EDIBAM & J.P LEWIS & E LITTON & G.K LO & G.B MCGRATH & D.J MORGAN & B.Y NG & P THYAGARAJAN & S.A WEBB & R WILKINSON & L YAW |
ABN Active | WA 6008 |
| 3 | 49 504 852 417 K.J DUFF & C.A OLIVE & J OLIVE & N.J OLIVE & V.P OLIVE |
ABN Cancelled | QLD 4701 |
| 4 | 54 823 022 783 P J & K A DUFF |
ABN Active | NSW 2360 |
| 5 | 92 895 233 984 P.A DUFF & K.J KACZMAREK |
ABN Cancelled | QLD 4350 |
| 6 | 54 823 022 783 P J & K A DUFF |
ABN Active | NSW 2360 |